powerpc/85xx: Add support for new P102x/P2020 RDB style boards

The following boards share a common design but with minor variations
between them:

P1020MSBG-PC
P1020RDB-PC
P1020UTM-PC
P1021RDB-PC
P1024RDB
P1025RDB
P2020RDB-PC

The P1020RDB-PC shares its roots in the existing P1020RDB board design,
however uses DDR3 instead of DDR2.
P2020RDB-PC differs from the P102x RDB-PC with 64-bit DDR and 100Mhz SYSCLK.

Key features on these boards include:
* DDR3
* NOR flash
* NAND flash (on RDB's only)
* SPI flash (on RDB's only)
* SDHC/MMC card slot
* VSC7385 Ethernet switch (on P1020MBG, P1020RDB, & P1021RDB)
* PCIE slot and mini-PCIE slots

As these boards use soldered DDR chips not regular DIMMs, an on-board EEPROM
is used to store SPD data. In case of absent or corrupted SPD, falling back
to timing data embedded in the source code will be used. Raw timing data is
extracted from DDR chip datasheet. Different speeds of DDR are supported
with this approach. ODT option is forced to fit this set of boards, again
because they don't have regular DIMMs.

CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS is defined as 5ms to meet
specification for writing timing.

VSC firmware Address is defined by default in config file for eTSEC1.

SD width is based off DIP switch. DIP switch is detected on the
board by reading i2c bus and setting the appropriate mux values.

Some boards have QE module in the silicon (P1021 and P1025). QE and eLBC
have pins multiplexing. QE function needs to be disabled to access Nor Flash
and CPLD. QE-UEC and QE-UART can be enabled for linux kernel by setting "qe"
in hwconfig. In addition, QE-UEC and QE-TDM also have pins multiplexing, to
enable QE-TDM for linux kernel, set "qe;tdm" in hwconfig. Syntax is as below

'setenv hwconfig qe' to enable QE UEC/UART and disable Nor-Flash/CPLD.
'setenv hwconfig 'qe;tdm'' to enalbe QE TDM and disable Nor-Flash/CPLD.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Zhao Chenhui <b26998@freescale.com>
Signed-off-by: Matthew McClintock <msm@freescale.com>
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Signed-off-by: Tang Yuantian <b29983@freescale.com>
Signed-off-by: ramneek.mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Matthew McClintock <msm@freescale.com>
Signed-off-by: Xie Xiaobo <X.Xie@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
Signed-off-by: Akhil Goyal <akhil.goyal@freescale.com>
diff --git a/boards.cfg b/boards.cfg
index d32ff7e..b224a9c 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -574,6 +574,10 @@
 P1011RDB_NAND                powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P1011RDB,NAND
 P1011RDB_SDCARD              powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P1011RDB,SDCARD
 P1011RDB_SPIFLASH            powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P1011RDB,SPIFLASH
+P1020MBG-PC                  powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020MBG
+P1020MBG-PC_36BIT            powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020MBG,36BIT
+P1020MBG-PC_SDCARD           powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020MBG,SDCARD
+P1020MBG-PC_36BIT_SDCARD     powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020MBG,SDCARD,36BIT
 P1020RDB                     powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P1020RDB
 P1020RDB_36BIT               powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P1020RDB,36BIT
 P1020RDB_36BIT_SDCARD        powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P1020RDB,36BIT,SDCARD
@@ -581,10 +585,40 @@
 P1020RDB_NAND                powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P1020RDB,NAND
 P1020RDB_SDCARD              powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P1020RDB,SDCARD
 P1020RDB_SPIFLASH            powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P1020RDB,SPIFLASH
+P1020RDB-PC                  powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020RDB
+P1020RDB-PC_NAND             powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020RDB,NAND
+P1020RDB-PC_SDCARD           powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020RDB,SDCARD
+P1020RDB-PC_SPIFLASH         powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020RDB,SPIFLASH
+P1020RDB-PC_36BIT            powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020RDB,36BIT
+P1020RDB-PC_36BIT_NAND       powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020RDB,36BIT,NAND
+P1020RDB-PC_36BIT_SDCARD     powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020RDB,36BIT,SDCARD
+P1020RDB-PC_36BIT_SPIFLASH   powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020RDB,36BIT,SPIFLASH
+P1020UTM-PC                  powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020UTM
+P1020UTM-PC_SDCARD           powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020UTM,SDCARD
+P1020UTM-PC_36BIT            powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020UTM,36BIT
+P1020UTM-PC_36BIT_SDCARD     powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1020UTM,36BIT,SDCARD
+P1021RDB-PC                  powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1021RDB
+P1021RDB-PC_NAND             powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1021RDB,NAND
+P1021RDB-PC_SDCARD           powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1021RDB,SDCARD
+P1021RDB-PC_SPIFLASH         powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1021RDB,SPIFLASH
+P1021RDB-PC_36BIT            powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1021RDB,36BIT
+P1021RDB-PC_36BIT_NAND       powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1021RDB,36BIT,NAND
+P1021RDB-PC_36BIT_SDCARD     powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1021RDB,36BIT,SDCARD
+P1021RDB-PC_36BIT_SPIFLASH   powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1021RDB,36BIT,SPIFLASH
 P1022DS                      powerpc     mpc85xx     p1022ds             freescale
 P1022DS_36BIT                powerpc     mpc85xx     p1022ds             freescale      -           P1022DS:36BIT
 P1023RDS                     powerpc     mpc85xx     p1023rds            freescale      -           P1023RDS
 P1023RDS_NAND                powerpc     mpc85xx     p1023rds            freescale      -           P1023RDS:NAND
+P1024RDB                     powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1024RDB
+P1024RDB_36BIT               powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1024RDB,36BIT
+P1024RDB_NAND                powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1024RDB,NAND
+P1024RDB_SDCARD              powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1024RDB,SDCARD
+P1024RDB_SPIFLASH            powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1024RDB,SPIFLASH
+P1025RDB                     powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1025RDB
+P1025RDB_36BIT               powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1025RDB,36BIT
+P1025RDB_NAND                powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1025RDB,NAND
+P1025RDB_SDCARD              powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1025RDB,SDCARD
+P1025RDB_SPIFLASH            powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P1025RDB,SPIFLASH
 P2010RDB                     powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P2010RDB
 P2010RDB_36BIT               powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P2010RDB,36BIT
 P2010RDB_36BIT_SDCARD        powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P2010RDB,36BIT,SDCARD
@@ -604,6 +638,14 @@
 P2020RDB_NAND                powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P2020RDB,NAND
 P2020RDB_SDCARD              powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P2020RDB,SDCARD
 P2020RDB_SPIFLASH            powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P2020RDB,SPIFLASH
+P2020RDB-PC                  powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P2020RDB
+P2020RDB-PC_NAND             powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P2020RDB,NAND
+P2020RDB-PC_SDCARD           powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P2020RDB,SDCARD
+P2020RDB-PC_SPIFLASH         powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P2020RDB,SPIFLASH
+P2020RDB-PC_36BIT            powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P2020RDB,36BIT
+P2020RDB-PC_36BIT_NAND       powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P2020RDB,36BIT,NAND
+P2020RDB-PC_36BIT_SDCARD     powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P2020RDB,36BIT,SDCARD
+P2020RDB-PC_36BIT_SPIFLASH   powerpc     mpc85xx     p1_p2_rdb_pc        freescale      -           p1_p2_rdb_pc:P2020RDB,36BIT,SPIFLASH
 P2041RDB                     powerpc     mpc85xx     p2041rdb            freescale
 P2041RDB_SDCARD              powerpc     mpc85xx     p2041rdb            freescale      -           P2041RDB:RAMBOOT_PBL,SDCARD,SYS_TEXT_BASE=0xFFF80000
 P2041RDB_SPIFLASH            powerpc     mpc85xx     p2041rdb            freescale      -           P2041RDB:RAMBOOT_PBL,SPIFLASH,SYS_TEXT_BASE=0xFFF80000